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I1

In the equation x + 8.2 = –12.7, 8.2 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation?

Subtract –12.7 from both sides. The solution is 20.9.

Add –12.7 to both sides. The solution is –4.5.

Subtract 8.2 from both sides. The solution is –20.9.

Add 8.2 to both sides. The solution is –4.5.

Step-by-step explanation:

dont't really have enough info here but its likely

sss for the three sides being congruent ( its stands for side side side)

or

sas   for side angle side.   so a side is congruent and and angle and a side